Clinicopathological features and treatment of gastrointestinal schwannomas

Figure 4 Gross and pathological findings of esophageal schwannoma resection via submucosal tunnel endoscopic resection (from the first patient shown in the previous endoscopic images). A: Endoscopic imaging showing a solid tumor measuring 1.4 cm × 1.2 cm × 0.8 cm; B: Pathological examination revealing that the tumor was composed of bland spindle cells (hematoxylin and eosin, 100 ×) with chronic inflammatory cell infiltration around the tumor; C and D: Positive immunohistochemical staining of SOX-10 and S-100 (magnification, 100 ×); E-G: Negative immunohistochemical staining of DOG-1, CD-117, and CD34 (magnification, 100 ×); H: Slightly positive immunohistochemical staining for SMA.